EP 0733782 B1 19990414 - Abnormality detecting apparatus for internal combustion engine
Title (en)
Abnormality detecting apparatus for internal combustion engine
Title (de)
Vorrichtung zum Auffinden von Anomalien in einer Brennkraftmaschine
Title (fr)
Dispositif de détection d'anomalie pour moteur à combustion interne
Publication
Application
Priority
- JP 3872295 A 19950227
- JP 4885395 A 19950308
Abstract (en)
[origin: EP0733782A1] In detecting the occurrence of an abnormality in a variable valve timing mechanism, which continuously changes a valve timing by advancing or delaying the displacement angle of an intake-side cam shaft with respect to a crankshaft, an abnormality detecting apparatus for a valve timing control apparatus determines that the variable valve timing mechanism is failing when the absolute value of the difference between a target displacement angle and a correct real displacement angle, obtained by subtracting the maximum delay-angle learning value from the real displacement angle, is greater than a first predetermined value and the absolute value of the difference between a correct real displacement angle and a previous correct real displacement angle is equal to or smaller than a second predetermined value. <IMAGE>
IPC 1-7
IPC 8 full level
F01L 1/344 (2006.01); F02D 13/02 (2006.01); F02D 41/00 (2006.01); F02D 41/22 (2006.01); F02B 1/04 (2006.01)
CPC (source: EP US)
F01L 1/34406 (2013.01 - EP US); F02D 13/0215 (2013.01 - EP US); F02D 13/0234 (2013.01 - EP US); F02D 13/0238 (2013.01 - EP US); F02D 13/0261 (2013.01 - EP US); F02D 41/0002 (2013.01 - EP US); F02D 41/221 (2013.01 - EP US); F01L 2001/0537 (2013.01 - EP US); F01L 2001/34436 (2013.01 - EP US); F01L 2201/00 (2013.01 - EP US); F02B 1/04 (2013.01 - EP US); F02D 2041/001 (2013.01 - EP US); Y02T 10/12 (2013.01 - EP US); Y02T 10/40 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0733782 A1 19960925; EP 0733782 B1 19990414; DE 69602049 D1 19990520; DE 69602049 T2 19991118; US 5626108 A 19970506; US 5715779 A 19980210
DOCDB simple family (application)
EP 96102845 A 19960226; DE 69602049 T 19960226; US 60557196 A 19960222; US 75950196 A 19961204